Static Friction
Which statement about static friction is true?
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About This Question
- Subject
- physics
- Chapter
- laws of motion
- Topic
- static friction
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
It adjusts up to a maximum value.
Static friction is a self-adjusting force.
- If you apply a small force F, static friction fs exactly matches it (fs=F) to keep the body at rest.
- As you increase F, fs also increases to match it, but only up to a point.
- This point is the limiting friction fmax=μsN.
- Once the applied force exceeds fmax, the body slips, and we switch to kinetic friction. Static friction is always ≤μsN.
This easy difficulty physics question is from the chapter laws of motion, covering the topic of static friction. It appeared in the 2025 exam.
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